Red blood cells have an average lifespan of 120 days in the human body. If a...

Red blood cells have an average lifespan of 120 days in the human body. If a given individual produces 200 billion red blood cells per day, what is the average number of red bloods cells in his/her body? (Note: 1 trillion = 1000 billion) SHOW WORK

a) 1.6 trillion cells b) 8 trillion cells c) 16 trillion cells d) 24 trillion cells e) 30 trillion cells f) 600 trillion cells g) We do not have enough information to answer this question.

Expert Solution

Red Blood Cells have a lifespan of 120 days on an average.

Human body produces 200 billion red blood cells per day.

Average number of red blood cells in his/her body on any particular day 'n' can be calculated as under:

Assuming that the day 'n' has just started, he/she will have 200 billion cells of day n-1, 200 billion red blood cells of day n-2,......and so on......, 200 billion red blood cells of day n-120. Then the old cells will start dying and new ones will be formed.

So average number of red blood cells on any specific day = 200 billion × 120 = 24000 billion = 24 trillion (Since 1 trillion = 1000 billion)

SO THE ANSWER IS (D) 24 TRILLION CELLS

orchestra answered 2 years ago

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